Ventilator.



No. 878231. PATENT D 13.4 1 A. A. PAGKER. B H 908 VBNTILATOR.

APPLICATION FILED APR.20.1907.

2 SHEETS-SHEET 1 r 4. f. x

No. 878,231. PATENTED FEB. 4, 1908,

A. A. PAOKER.

VENTILATOR.

APPLICATION TILED APR.20.1907.

2 SHBETS-SHEET 2.

mes

ALFRED AQPACKER, OF ST. PAUL, MINNESOTA.

VENTILATOR.

Specification of Letters Patent.

Patented Feb. 4,1908.

Application filed April 20. 1907. Serial No. 369.242.

To all whom it may concern:

Be it known that I, ALFRED A. PACKER, of St. Paul, Ramsey county,Minnesota, have invented certain new and useful Impr vements inVentilators, of which the following is a specification.

My invention relates to that type of ventilators adapted for use withwindows to ventilate rooms, and the object of my invention is to providea'vntilator composed of but few parts and hence inexpensive tomanufacture or repa1r.-.

A further object is to provide a ventilator which can be easily appliedto a window and as readily removed therefrom.

A further object is to provide a ventilator which can be easily adaptedfor any width of window.

The invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a perspective view looking at the outside of a window and showingmy invention applied thereto. Fig. 2 is a similar view illustrating theinvention removed from the window. Fig. 3' is a sectional view showingthe ventilator in its open position. Fig. 4. .is a similar view showingthe ventilator closed. Figs. 5 and 6 are detail sectional viewsillustrating the means for opening and closing the ventilator andsecuring it in any desired position.

In the drawing,-2 represents a window sill, 3 the frame and. 4 the lowersash between which and the sill my improved ventilator is placed.

5 is a board corres onding in length to the width of the sash an made ofsuitable height to be sli ped into the opening when the sash is raised:the sash being lowered to rest upon the upper edge of the board to holdthe ventilator in place in the window. The board or plate 5 is providedwith a longitudinal openmg 6, and on the outer side of the board coverithis opening I provide the-usual screen 7. On the o osite or inner sideof the board a substantia cylindrical shell 8 preferably of metal isprovided and having an opening 9 coinciding with the opening in theboard, the walls of the cylinder at the edges of the opening beingsecured to the board in an suitable manner and holding the cylindricalshell in place thereon. Within the shell 8. semi-cylindrical valve 10 isprovided havlng and heads 10 mounted on pivot pins 1 1 in the ends ofthe shell and concentric therewith, .said valve being ada ted to swingon its axis and cover a longitu inal opening 12 in the upper Walls ofthe shell and close the same a ainst the entrance of air into the room.A de ector plate 13 is provided within the shell near the top of theopenin 9 and inclined inwardly and downwardly from said opening for thepurpose of directing the incoming currents of air past the middle ortionof the shell and through the valve. he direction of movement of thesecurrents is indicated by the arrows in Fig. 3, the valve being open toallow the cold air to flow in past the inner edge of the deflector andup through the opening 12 and up beside t e glass in the lower sashuntil finally it flows off into the room without creating a draft on aperson seated near the window. In fact, the air will be s read out anddeflected against themner su ace of the window to such an extent thatwhile thorough ventilation of the room will be obtained no disa reeabledrafts will be noticed even close by t e window.

For the purpose of regulating the size of the opening in the upper partof the cylindrical shell 1 provide slots 14 in the walls thereof andmount screws 15 in the valve near each end, the ends of the screwsprojecting. through the slots 14 and being provided with thumb nuts 16which when tightened will engage the edges of the slots and lock thevalve in any desired position. The amount of cold air entering throughthe ventilator can thus be regulated according to the outsidetemperature.

Where the opening 12 is of considerable length, I may rovide thestrengthening brace 15 extending across the said opening midway betweenthe ends thereof, as shown in Fig. 2.

The board 5 will be made of any suitable len th according to the size ofthe window,

the opening therein may be varied according to the dimensions of theroom and the number of persons usually occupying it. If preferred,however, the o ening through the board may be the same size for .allventilators and the supply of fresh air regulated to the needs of theroom, by means of the swingin valve.

claim as my invention:

1. A window ventilator comprising a board or plate having an openingextending lengthwise thereof, a screen for said opening, a substantiallycylindrical shell having an opening in its side wall coinciding with theopening in said board, and secured to' said board on the inside of theWindow, and said shell having an openingin its upper walls and aswinging valve semi-cylindrical in form located in said shell andarranged to swing back and forth therein and regulate the passage 'ofair,

through said openin and means Within said shell for deflecting t eincoming currents of air' and preventing them from passing in a directline therethrough substantially as described. y

' 2. A Window ventilator comprising a plate adapted to rest on thewindow sill between it arranged to deflect the incoming currents of air,a valve pivoted Within said shell and arranged to close the opening inthe upper wal s thereof, and means for adjusting said valve to increaseor decrease thevsize of said 4 opening. 7 I

3. A window ventilator comprising a plate adapted to be placedon thesillbetween it and the sash and having aiiiopening extending lengthwisetherein, a substantially cylindrical shell having an o ening to coincidewith the opening in said p ate and secured to the inner side of saidplate, said shell having an opening in its upper wall'extendinglengthwise thereof, a swinging valve provided in said shell and having awall arranged to close said last named opening and prevent the entranceof air therethrough, and a deflector plate arranged in the upper part ofthe opening in the side wall of said shell and inclined downwardly andinwardly from said opening and adapted to direct and deflect the air tothe opposite wall of said shell, substantially as described.

4. The combination, with a window sash,

,ef a plate ada ted to'be placed under the sash, and on t e upper edgeof which plate the sash rests, said plate havin an opening extendingtherethrough and a s ell having a corresponding opening in its sidewalls and coinciding with the opening in said plate,'a

deflector plate provided-in saidshell and inclined inwardly anddownwardly froin-the opening therethrough, and said shell-"havinga.second opening in its upper walls near said sash, a valve adapted toregulate'the currentsv of air flowing. through said second opening, andmeans for adj usting said valve..

5. The combination, ,with a window sash,-

of a plate adapted to be placed under the sash, said plate having anopening extending "therethrough'and a shell having 'a correspondingopening in its side walls and'coinciding with the opening in said plate,said shell having a second opening. in its upper walls near said sash, avalve adapted to regu late the flow of air through said second openingand means for deflecting the currents of air-flowing throughsaid firstnamed opening j to preventthem from passing. in a direct line throughsaid shell, substantially as described. In witness whereof, I havehereunto set m hand this 12th day of April 1907.

ALFRED .A. PACKER.

Witnesses:

RIOHARD PAUL,

J. B. ERA.

